任何人都可以发现此SQL语句中的错误吗？ <resolved>

Question

我想添加一行到数据库，如果它不存在或更新行，如果它。我哪里错了？我已经看了它一千次，并认为我可能会丢失一些愚蠢的东西...

UPDATE Classes 
SET (Duration='44', 
INModule='Actions', 
EditionsFOR='Vocus VPR - Basic Edition//Vocus PR - Enterprise Edition//',  
Objectives='objective 1//objective 2//objective 3//', 
PreReq='prerequisite 
1//prerequisite 2//prerequisite 3//', 
Points='training point 1//training point 2//training point 3//',  
ContentLink='www.aol.com', 
OtherInfo='this is the internal info', 
Summary='this is a brief summary of the class') 
WHERE Title='this is the class title' 
IF @@ROWCOUNT=0 
INSERT INTO Classes (Title, Duration, INModule, EditionsFOR, Objectives, PreReq, 
Points, ContentLink, OtherInfo, Summary) 
VALUES ('this is the class title','44','Actions', 
'Vocus VPR - Basic Edition//Vocus PR - Enterprise Edition//', 
'objective 1//objective 2//objective 3//', 
'prerequisite 1//prerequisite 2//prerequisite 3//', 
'training point 1//training point 2//training point 3//', 
'www.aol.com','this is the internal info', 
'this is a brief summary of the class') 

Answer 1

删除括号为SET的括号。应该这样写：

UPDATE Classes 
SET Duration = '44', 
    INModule = 'Actions', 
    EditionsFOR = 'Vocus VPR - Basic Edition//Vocus PR - Enterprise Edition//', 
    Objectives = 'objective 1//objective 2//objective  3//', 
    PreReq  = 'prerequisite 1//prerequisite 2//prerequisite 3//', 
    Points  = 'training point 1//training point 2//training point 3//', 
    ContentLink = 'www.aol.com', 
    ....